ARM: dts: r8a7744-iwg20m: Add SPI NOR support

Add support for the SPI NOR device used to boot up the system
to the iWave RZ/G1N Qseven System On Module DT.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7744-iwg20m.dtsi b/arch/arm/boot/dts/r8a7744-iwg20m.dtsi
index 503583e2c852f57fb810f3d8c527c421fa804a3a..82ee3c1140efec2b299239aa9e2db84bcaaa4b84 100644 (file)
--- a/arch/arm/boot/dts/r8a7744-iwg20m.dtsi
+++ b/arch/arm/boot/dts/r8a7744-iwg20m.dtsi
@@ -36,6 +36,11 @@ mmcif0_pins: mmc {
                function = "mmc";
        };
 
+       qspi_pins: qspi {
+               groups = "qspi_ctrl", "qspi_data2";
+               function = "qspi";
+       };
+
        sdhi0_pins: sd0 {
                groups = "sdhi0_data4", "sdhi0_ctrl";
                function = "sdhi0";
@@ -53,6 +58,27 @@ &mmcif0 {
        status = "okay";
 };
 
+&qspi {
+       pinctrl-0 = <&qspi_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+
+       /* WARNING - This device contains the bootloader. Handle with care. */
+       flash: flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <50000000>;
+               spi-tx-bus-width = <2>;
+               spi-rx-bus-width = <2>;
+               m25p,fast-read;
+               spi-cpol;
+               spi-cpha;
+       };
+};
+
 &sdhi0 {
        pinctrl-0 = <&sdhi0_pins>;
        pinctrl-names = "default";